A few days back I had given this presentation to CAD professionals transitioning from CAD to BIM. The work type is changing and it requires them to adapt to the changing trends in the industry.
Most professionals are really good at CAD but since they have limited or incorrect information about how BIM is actually implemented they end up messing with the entire project.
I had the opportunity to witness situations wherein the CAD detailers had exploded objects just to make them appear correctly in the drawing, they were not wrong in their approach as CAD works that way. You need to just represent the objects in 2D space to make it work after all there's a human that'll be reading the drawings.
Thank you
-Shadaab